package com.example.lib_storage.utils

import kotlin.properties.ReadWriteProperty
import kotlin.reflect.KProperty

class MMKVProperty<T>(private val defValue:T):ReadWriteProperty<MMKVOwner,T> {
    override fun getValue(thisRef: MMKVOwner, property: KProperty<*>): T {
        return thisRef.mmkv.run {
            when(defValue){
                is String -> getString(property.name,defValue)
                is Int -> getInt(property.name,defValue)
                is Long -> getLong(property.name,defValue)
                is Float -> getFloat(property.name,defValue)
                is Boolean -> getBoolean(property.name,defValue)
                is Double -> encode(property.name,defValue)
                else -> Unit
            }
        } as T
    }

    override fun setValue(thisRef: MMKVOwner, property: KProperty<*>, value: T) {
        thisRef.mmkv.run {
            when(value){
                is String -> putString(property.name,value)
                is Int -> putInt(property.name,value)
                is Long -> putLong(property.name,value)
                is Float -> putFloat(property.name,value)
                is Boolean -> putBoolean(property.name,value)
                is Double -> encode(property.name,value)
                else -> Unit
            }
        }
    }
}
class MMKVNullableProperty<T>(private val clazz:Class<T>? = null,private val defValue:T? = null):ReadWriteProperty<MMKVOwner,T?> {
    override fun getValue(thisRef: MMKVOwner, property: KProperty<*>): T? {
        return thisRef.mmkv.run {
            when(defValue){
                is String -> getString(property.name,defValue)
                is Boolean  -> getBoolean(property.name,defValue)
                is Int -> getInt(property.name,defValue)
                is Long -> getLong(property.name,defValue)
                is Float -> getFloat(property.name,defValue)
                is Double -> decodeDouble(property.name,defValue)
                else -> {
                    if (clazz == null) return null
                    val json = getString(property.name, defValue?.let { GSON.toJson(it) }) ?: ""
                    //字符串转对象
                    GSON.fromJson(json,clazz)
                }
            }
        } as? T?
    }

    override fun setValue(thisRef: MMKVOwner, property: KProperty<*>, value: T?) {
        thisRef.mmkv.run {
            when(value){
                is String -> putString(property.name,value)
                is Boolean  -> putBoolean(property.name,value)
                is Int -> putInt(property.name,value)
                is Long -> putLong(property.name,value)
                is Float -> putFloat(property.name,value)
                is Double -> encode(property.name,value)
                else -> {
                    putString(property.name,GSON.toJson(value))
                }
            }
        }
    }
}